Well Tischer sells the battery for 215$ but can't ship it because it's considered hazardous material. What are my other options?

And can someone please explain to me how the new battery needs to be "registered to the car"? I understand there is a tool to do it yourself, but would it be cheaper to just have the dealer do that? Could someone send me a link of where to buy this tool?

hazardous materials can be shipped and are shipped everyday. they must go ground, be packaged for their hazard, labeled per DOT standards and declared to the shipping company. a lot nastier stuff than a battery gets shipped every day in the US. Tischer obviously just does not want to deal with it. Have someone local pick it up from them and ship it to you.

If you get a coding cable, the registration DIY can be found easily on these boards and the software shouldn't be too tough either (look for coding software, same package). The dealer will overcharge for this, but that's definitely the easier option, especially if you don't already have the $100 coding cable, though that can come in handy for other stuff and future battery replacements too.

hazardous materials can be shipped and are shipped everyday. they must go ground, be packaged for their hazard, labeled per DOT standards and declared to the shipping company. a lot nastier stuff than a battery gets shipped every day in the US. Tischer obviously just does not want to deal with it. Have someone local pick it up from them and ship it to you.

How would i go about doing this if I dont know any one in the area? If that's what you mean? Sorry if this is a dumb question.

The Deka East Penn battery in the link below fits and works perfectly. Deka East Penn was an OEM supplier for BMW. Go to a dealer or independent shop for the battery registration.
Sign up for their newsletter and get 10% off your first order. Comes to $188.95. No tax and free shipping.

If you have a trickle charger, see if you can charge it back up. I don't drive my cars often so the batteries get tired quickly to the point of slow cranks during startups. 2 days on the trickle charger seems to recondition it and brings it back to normal for me.

If you do this, make sure you match the stock amp-hour rating, otherwise in addition to registering the battery you'll have to recode your car.

hmm, I just want to learn more about the battery. Fsarc indicated that the Deka battery is exactly the same but the ah rate of the Deka is at 95 with a cca of 850. Isn't the oem battery at 90ah and 900 cca? Does that mean we have to register 'and' recode the car if we get the Deka battery?

Great thread. I have an '08 that I'm sure is going to need a battery soon.
But really, is it necessary to make this process so complicated? I just can't see this being anything but a money maker for the stealer. Unreal.

Important notice!
----------------------------------------
Compliance with the following
information and instructions for correct
battery replacement is absolutely
mandatory!
- ISTA Document
RA_61_20_Instructions_for_battery_
replacement
----------------------------------------
For additional information, see:
- Battery master document
ISTA_Document_SI_61_07_02_(875)
----------------------------------------
The original battery (battery size and
type) as indicated in the vehicle's
order specifications must always be
installed to ensure correct operation of
the on-board electrical system!
----------------------------------------
If the vehicle is equipped with an IBS
(Intelligent Battery Sensor), the
battery must be registered via the
diagnostic system (ISTA); this process
also registers the battery with the
vehicle's on-board electrical system.
----------------------------------------
Standard batteries can always be
replaced by AGM batteries with the same
specifications.
Following either type of replacement,
the vehicle registration process in
ISTA/P must be supplemented by a vehicle
coding procedure, which is carried out
as follows:
----------------------------------------
Read out battery size and registration
from onboard electrical system:
ISTA->Service functions->Body->Voltage
supply->Register_battery replacement->
Test plan
----------------------------------------

Mine was throwing discharge warnings last year. I put it on a trickle charger a couple times and it was fine after that. Same time period this year it did it again, so I am trying charging it again. If it doesnt work I guess I will have to pony up for a new one.

hmm, I just want to learn more about the battery. Fsarc indicated that the Deka battery is exactly the same but the ah rate of the Deka is at 95 with a cca of 850. Isn't the oem battery at 90ah and 900 cca? Does that mean we have to register 'and' recode the car if we get the Deka battery?

From what I've researched so far, I'm going to go with Die Hard Advance Gold. THere's a few forum members running around with that battery and they said no problems thus far.